WHAT ARE THE DIFFERENT TYPES OF
WATERPROOFING MEMBRANES

How-to-choose-waterproofing-products-and-system

View Video Below

Waterproofing - will the membrane work & will it last? 

This is the one of the most common questions I am asked by builders and clients: will the membrane work and will it last? 


Melbourne-balcony-repairs

LEAKY BALCONY DUE TO WATERPROOFING FAILURE CAUSES SUBSTANTAIL TIMBER DAMAGE.

timber-deck-waterproofing-membrane

​BALCONY REPAIRS & RESTORATION DUE TO FAILED WATERPROOFING


Quality waterproofing is not simple.


There are various waterproofing decisions to be made ​which are dependent on the individual project - so​ waterproofing methods & products ​are often a case by case scenario.

However choosing your waterproofing contractor who  is both experienced and uses only quality products is one of the first steps to a long lasting and successful waterproofing project.

As BOTH Registered Building Practitioner & Certified Waterproofer

Findlay-Evans use waterproofing systems developed for success

waterproofing contractors Melbourne

For an in depth analysis of waterproofing challenges - read article below:

Article by Paul Evans

Manager Director of Findlay-Evans Waterproofing & President of the Australian Institute of Waterproofing (AIW):

How to Choose a Waterproofing Membrane

​Waterproofing Coatings & Products 

Spray-applied-liquid-rubber-waterproof-membrane

Spray Applied Liquid Membranes

sheet-membrane-Melbourne

Sheet Membrane - sticky back or glue adhered.

Torch-On-Waterproofing-Melbourne

Torch-on Membrane - adhere with heat applied

Choosing the Correct Waterproof Product is Critical

​There are numerous products on the market and it is diffult to know if your waterproofer is using an appropiate material for the project in hand.

However there ​several factors that contribute to selecting the correct waterproof ​coating.   

  1. - below or above ground
  2. - external or internal
  3. - project design i.e balcony with minimal fall
  4. - U​V stable & chemical resistant
  5. - site access
  6. - budget ​
  7. - manufactuers' warranty
  8. - installers experience & guarrantees

Minimum ​Requirements ​for a Quality Waterproofing System  

1. Membrane Flexibility

  • A quality waterproofing system is seamless and flexible.
  • Flexibility allows the membrane to stretch with the normal structural movement of surfaces without cracking.
  • A quality waterproofing product will remain flexible over time.
  • Flexibility also allows the membrane to settle in and bridge small hairline settlement cracks that can occur in concrete and/or cement block work.
Flexible Waterproofing Membrane

Flexible Waterproofing Membrane

2. Robust Adhesion

  • Strong & robust adhesion to all surfaces.
  • Will not crack, peel off or dry out. 
  • A versatile membrane will adhere strongly to concrete, timber, cement block work, asbestos and metal.
  • UV stable - long life subjected to Australian weather conditions. 
New Roof Membrane

Remedial Waterproofing

3. Fast Application

  • Waterproofing needs to be cost effective, efficient & work. For new construction there are trades waiting to follow, and for remedial waterproofing require least amount of disruption as possible. 
  • Up to 3 x faster than conventional sheet/roll on systems.
  • Liquid Applied Membranes are a seamless and continuous membrane without seams, joins or overlaps.
  • Joins in sheet membranes may become areas for potential water leaks due to delamination. 
spray apply waterproofing membrane

Liquid Waterproofing Membranes

Melbourne Liquid Waterproofing
Melbourne -waterproofers
Spray-Apply-Waterproofing-Membrane-MELBOURNE

​Problem with Sheet & Torch-On Waterproof Coatings 

Torch-On-Waterproofing-Melbourne
torch-on-waterproofing-in-Melbourne
torch-on-membrans-waterproofers-Melbourne

We have seen numerous failures due to the charastics of sheet & torch-on membranes: 

  1. ​ - joins and seams are areas of potential water ingress.
  2. ​- membrane degradation due to UV light.
  3. - inability to withstand ponding water.
  4. - flammable torch-on methods & heat-applied membranes compromise safe work practices.
  5. - Torch-on membranes are heat-fused to underlying surfaces. A blow torch treatment is applied to sheets that come in varying thicknesses.

Inflammable polystrene foam cladding caught fire in Malaysian EPF building due to heat-applied maintenance waterproofing works.

Excerpt from The Straits Times:

"In order to melt the waterproofing membrane, you need to use a flame gun. The cladding accidentally caught fire, and it spread really fast. The contractor doing the waterproofing was not aware that the cladding material was easily flammable."

http://www.straitstimes.com/asia/se-asia/cladding-panels-on-malaysian-epf-building-that-caught-fire-made-of-highly-flammable

Recurring problems encountered by ​sheet membrane systems

Torch On membrane unable to withstand "ponding" water
waterproofing-melbourne
Metal-Roof-Repair-Liquid-Rubber

Liquid Applied Membranes are a cold spray-applied waterproof coatings.

  • Developed to solve the problems that continually arise with conventional membrane systems.
  • Liquid Rubber is environmental friendly and provides a strong, flexible and seamless membrane. 
  • Liquid Rubber has superior adhesion, robust longevity, UV stable and can with stand "ponding" water. 
  • These unique properties, mean that Liquid Rubber membranes are used across all sectors within construction. 
Spray Applied Membranes

Using Liquid Waterproofing Membranes

Basement Waterproofing - Grand Maison Constructions

Basement Waterproofing

MELBOURNE WATERPROOFING SERVICES 

waterproofing contractors Melbourne